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Mark L. Boon

Practice Areas

  • Estate Planning and Probate


Attorney Mark L. Boon is president and the firm's estate planning and probate specialist. In addition to three decades' experience practicing law in Texas, Mr. Boon is board certified in Estate Planning and Probate Law by the Texas Board of Legal Specialization and a Certified Public Accountant who is admitted to practice before the U.S. Tax Court. Mr. Boon is also the recipient of Martindale-Hubbell's "AV" preeminent peer rating.*

An active member in Longview's legal and community organizations, Mr. Boon is a member of the Real Estate, Probate, and Trust Law and Taxation Sections of the State Bar of Texas, a member of Good Shepherd Health System Board of Directors, a member of East Texas Community Foundation Board of Directors, a member of the LeTourneau University President's Advisors Committee, and a member of the Parks and Leisure Foundation of Longview Board of Directors. Mr. Boon resides in Longview, Texas, with his wife, Janet.


  • The University of Texas School of Law, Austin, Texas
    • J.D. - 1976
  • Tyler Junior College
    • A.A. - 1971
    • Honors: Highest Honors
  • University of Texas, Austin, Texas
    • B.B.A. - 1972
    • Honors: Highest Honors

Bar Admissions

  • Texas, 1976
  • U.S. District Court Eastern District of Texas, 1978
  • U.S. Tax Court

Professional Associations

  • State Bar of Texas, Real Estate, Probate and Trust Law Sections, Member
  • State Bar of Texas, Taxation Section, Member


  • AV Preeminent Peer Rating, Martindale-Hubbell

Pro-Bono Activities

  • Good Shepherd Health System, Member of Board of Directors
  • Good Shepard Medical Center, Board Member
  • Longview Rotary Club, Past President
  • Longview Estate Planning Council, Member
  • East Texas Community Foundation, Member of Board of Directors
  • LeTourneau University President’s Advisory Committee, Member
  • Parks and Leisure Foundation of Longview, Member of Board of Directors

Fraternities or Sororities

  • Phi Theta Kappa
  • Beta Alpha Psi
  • Phi Alpha Phi
  • Beta Gamma Sigma
  • Phi Delta Phi

Certified Legal Specialties

  • Estate Planning and Probate Law, Texas Board of Legal Specialization
  • Certified Public Accountant